The L-Type/D-Type/S-Type/F-Type/N-Type 3998 Series
The 3998 series is a family of state-of-the-art high-performance 1550 nm externally-
modulated CATV fiber optic transmitters optimized for varying network applications.
Packaged in convenient 1 RU housing, this line of optical transmitters couples high optical
output powers, up to 11.0 dBm, with low optical linewidth resulting in unmatched
performance. The optical modulator, combined with proprietary predistortion circuitry,
provides superior CTB and CSO performance with SBS suppression levels of greater than
21 dBm. Advanced features such as built-in field adjustable SBS control and electronic
dispersion compensation allow these transmitters to be quickly optimized in the field for any
link or application without the need to procure specifically tuned transmitters. This affords
the system designer a level of flexibility previously unknown in the CATV market place.
The L-Type series are designed as a high-performance solution for applications where the
simultaneous transport of CATV and SAT-IF FM signals is required. The SAT-IF signals
can be applied anywhere in the 950 to 2800 MHz band.
The D-Type series are designed as a low cost, high-performance solution for applications
where the required fiber length is in the range of 20 to 50 kilometers. Advanced, high
power, DFB laser technology allows these transmitters to be fielded without the use of
EDFAs.
The S-Type series transmitters are designed to be the most versatile model within the 3998
series family. They can easily be configured to meet most HFC network solutions requiring
link lengths in the range of 50 to 70 kilometers with one EDFA as well as links utilizing
multiple EDFA’s.
The F-Type series transmitters are intended for use in FTTx and RFoG architecture
designs requiring high-quality transmission over varying transmission lengths and EDFA
output powers. These transmitters successfully support very high optical launch powers
while controlling the detrimental effects of Stimulated Brillouin Scattering (SBS), group
velocity dispersion (GVD), and self phase modulation (SPM).
The N-Type series transmitters are intended for use in node-splitting architecture designs
requiring cost effective DWDM transmission over medium length fiber distances.
Applications
High-Performance Supertrunking Links
High Power Distribution Networks
Redundant Ring Architectures
FTTx Networks
RFoG Applications
SAT-IF Transport
DWDM Node Splitting
Features
Single or Dual Optical Outputs
QAM Loading to 1003 MHz
Dual Power Supplies and Fans,
Redundant & Hot Swapplable
Front Panel RF Test Point
SNMP Control Interface
WEB GUI
Vacuum Fluorescent Status Display
OMI / RF Gain Adjustment
AGC Select: CW, Video, Manual (No
AGC)
Industry Leading Field Adjustable SBS
Suppression
Field Adjustable Electronic Dispersion
Compensation (EDC)
| REV 2013.10
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
Optical / Electrical Characteristics
L-Type
Property
Performance (note 1-8)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
CATV Carrier to Noise Ratio
CATV Composite Second Order
CATV Composite Triple Beat
CATV Composite Triple Beat
SAT-IF Carrier to Noise Ratio
SAT-IF Intermodulation Products
SAT-IF Spurious Products
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
CNR (dB)
(dBc)
(dBc)
Units
3998-L01
L (km)
25
NTSC 80-Ch
8.5/8.5
4
15.0
51.0
-65
-65
-64
27
-35
-38
Models
3998-L02
3998-L03
25
PAL 60-Ch
8.5/8.5
5
15.0
51.0
-65
-65
-64
27
-35
-38
25
NTSC 110-ch
8.5/8.5
4
15.0
49.5
-65
-65
-64
27
-35
-38
Comments
3998-L04
25
PAL 89-Ch
8.5/8.5
5
15.0
49.5
-65
-65
-64
27
-35
-38
Min.
Min.
Max. Port 1
Max. @ +25°C
Max. @ 0 C to 50 C
Min.
Max. Port 1
Max.
o
o
With 36 QPSK carriers
from 950 to 2800 MHz
Min. 10 dBm version
avail. See Chart
D-Type
Property
Performance (note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
Units
3998-D01
L (km)
40
NTSC 80-Ch
11.0
4
> 12.0
54.0
-65
-65
-64
Models
3998-D02
3998-D03
40
PAL 60-Ch
11.0
5
>12.0
54.0
-65
-65
-64
40
NTSC 110-ch
11.0
4
>12.0
51.0
-65
-65
-64
Comments
3998-D04
40
PAL 89-Ch
11.0
5
>12.0
51.0
-65
-65
-64
Min.
Min.
Max.
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Min.
| REV 2013.10
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
S-Type
Property
Performance
(Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
L (km)
Units
3998-
SA1
65
NTSC 80
7.0/ 7.0
4
16.0
53.0/ 53.0
-65/ -65
-65
-64
Models
3998-SA2
65
PAL 60
7.0/ 7.0
5
16.0
53.0/ 53.0
-65/ -65
-65
-64
Comments
3998-SA4
65
PAL 89
7.0/ 7.0
5
16.0
50.0/ 50.0
-65/ -65
-65
-64
3998-SA3
65
NTSC 110
7.0/ 7.0
4
16.0
50.0/ 50.0
-65/ -65
-65
-64
3998-SA5
65
42 CENELEC
7.0/ 7.0
5
16.0
53.0/ 53.0
-65/ -65
-65
-64
Min.
Min.
Max.
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Min. - Higher Powers
Available See Chart
F-Type
Property
Performance (Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
Units
3998-F01
L (km)
20
NTSC 80-Ch
7.0/ 7.0
4
21.0
48.0
-58
-58
Models
3998-F02
3998-F03
20
PAL 60-Ch
7.0/ 7.0
5
21.0
48.0
-58
-58
20
NTSC 110-ch
7.0/ 7.0
4
21.0
45.0
-58
-58
Comments
3998-F04
20
PAL 89-Ch
7.0/ 7.0
5
21.0
45.0
-58
-58
Min.
Min.
Max.
Max.
Min.
N-Type
Property
Performance (Note 1-7)
Specified Link Length
Channel Plan
Optical Output Power
Noise Bandwidth
SBS Suppression
Carrier to Noise Ratio
Composite Second Order
Composite Triple Beat
Composite Triple Beat
Po (dBm)
BW (MHz)
(dBm)
CNR (dB)
CSO (dBc)
CTB (dBc)
CTB (dBc)
L (km)
Units
Models
3998-N01
3998-N02
40
NTSC 80-Ch
9.5
4
13.0
52.0
-62
-62
-61
40
PAL 60-Ch
9.5
5
13.0
52.0
-62
-62
-61
Min.
Min.
Max.
Min.
Comments
Max. @ +25°C
Max. @ 0 C to 50 C
o
o
Notes:
1. Unless stated otherwise all specifications apply over full temperature range with no digital loading.
2. Unless stated otherwise specifications apply for nominal RF input level as defined below, after a 30 minute stabilization
3. Specifications separated by a slash are port1 / port 2.
4. Units are tested per the Test / Link Configuration Table
5. Noise figure for the EDFA = 4.5 ~ 5.5 dB
6. Corning SMF-28 single mode fiber
7. Receiver responsivity is 0.95 mA/mW, Equivalent noise current is 7 pA/(Hz)1/2General and Mechanical Specifications
8. With 36 QPSK modulated SAT-IF signals between 950 --- 2800 MHz, 27 MHz IF bandwidth.
| REV 2013.10
period.
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
General and Mechanical Specifications
Property
Wavelength
Channel Plan
Optical Connector
Monitoring Interfaces
1555 +/-5 nm
Various – See Specification Tables
SC/APC
100 Base-T Ethernet (SNMP)
Rear Panel RS-232 interface
VFD Screen Front Panel Controls
0°C to 50°C
-20°C to 70°C
65W max
EMI:
EN50083-2:2006 (US CATV)
EN55022:2006 (US IT)
EN61000-3-2 (Harmonics)
EN61000-3-3 (Flicker)
FCC: Part 15, Subpart B, class “A” Unintentional
Radiators
ICES-003 (Canada)
AN/NZS 3548, Class A (Australia)
VCCI, Class A (Japan)
GR-2853-CORE
GR-2853-CORE
20% to 85%
(VAC)
(VDC)
Dimensions
Input Power Range
90 to 265 VAC, 50/60 Hz
+/- (36 – 72) VDC
19.0”W x 15.0”D x 1.72”H
17 +/-1 dBmV/ch 80 NTSC channels
15 +/-1 dBmV/ch 110 NTSC channels
18 +/-1 dBmV/ch 60 PAL channels
20 +/-1 dBmV/ch 42 CENELEC channels
16 +/-1 dBmV/ch 89 PAL channels
27 +/-1 dBmV/ch SAT-IF channels
Input Power Range
19 +/-2 dBmV/ch 80 NTSC channels
17 +/-2 dBmV/ch 110 NTSC channels
20 +/-2 dBmV/ch 60 PAL channels
18 +/-2 dBmV/ch 89 PAL channels
22 +/-2 dBmV/ch 42 CENELEC channels
29 +/-2 dBmV/ch SAT-IF channels
(width includes 19” front panel ears, depth
includes, connectors, fans & front panel) – see
drawing
Manual mode
Manual mode
Manual mode
Manual mode
Manual mode
Manual mode
CW mode
CW mode
CW mode
CW mode
CW mode
AGC mode
Safety:
FDA/CDRH Laser Safety Governed by Code of
Federal Regulations Title 21, Volume 8, Part
1040
IEC 60950-1
IEC 60728-11
Laser IEC 60825-1
CB Certification
In Shipping package
In Shipping package
Non-condensing
Requirement
Comments
Various Options + ITU-grid available – see
Model Number Information
Custom channel plans available
Other styles available
VFD- (Vacuum Fluorescent Display)
Operating Temperature
Storage Temperature
Power Consumption
Agency Listings
Transportation Vibration
Transportation Shock
Operating Humidity
Supply Range
| REV 2013.10
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
3998 Series 1550 nm
Externally-Modulated Transmitter
DATASHEET | OCTOBER 2013
FIBER OPTICS
General and Mechanical Specifications
(continued)
Property
Front Panel RF Gain / OMI Adjustment Range
CATV Frequency Range
CATV Flatness
CATV Flatness – N-Type
CATV Input impedance
CATV Input Return Loss
CATV Front Panel RF Tap
CATV Front Panel RF Tap Flatness
SAT-IF Frequency Range
SAT-IF Flatness
SAT-IF Input impedance
SAT-IF Input Return Loss
SAT-IF Front Panel RF Tap
SAT-IF Front Panel RF Tap Flatness
Requirement
+2 / -4 dB from nominal setting
45 MHz – 1003 MHz
+/- 0.50 dB
+/- 0.75 dB
+/- 0.75 dB
75
Ω
16 dB min
-20 +/- 1 dB down from RF input
+/- 1 dB
950 MHz – 2800 MHz
+/- 2 dB
75
Ω
10 dB min
7 +/- 2.5 dBmV/Ch at 1% OMI/ch
+/- 1 dB
Comments
CATV Performance can vary slightly
45 MHz – 550 MHz
45 MHz – 1003 MHz
45 MHz – 1003 MHz N-Type
45 MHz – 1003 MHz
45 MHz – 1003 MHz
950 MHz – 2800 MHz
950 MHz – 2800 MHz
Test/Link Configuration
Property
L-Type
D-Type
S-Type
F-Type
N-Type
15 dBm
None
16 dBm
21 dBm
13 dBm
EDFA
25 Km
40 Km
65 Km
20 Km
40 Km
Link
1
Received Power
2
0.0 dBm at the receiver
0.0 dBm at the receiver
0.0 dBm at the receiver
-5.5 dBm at the receiver
0.0 dBm at the receiver
| REV 2013.10
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
[size=4]I. Advanced Applications of DSP/BIOS[/size] [size=4] [/size] [size=4] DSP executes multiple tasks at the same time, responding to external events when external data becomes valid or control si...
RMB sincerely asks for the solution of how the JZ4750 chip uses the CIM interface to communicate with the SAA7113, converting the PAL AV signal into ITU656 data, and the SAA7113 chip settings and the ...
I have configured NVIC_Configuration(),ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE); //ADC1 EOC interrupt enableBut I cannot enter the interrupt service function. What is the reason?...
Since people came to this world, they have faced a lot of choices, some of which are proactive. Some people rape others, some are raped. No matter what, life goes on and life grows old. Born in the la...
Reflow soldering is a critical process in electronics assembly production, and the cleanliness of the reflow oven has a direct impact on product quality. Dust and residue accumulation within the ov...[Details]
Ever since the Tesla fire incident, electric cars, already known for their poor reputation, have been subjected to even more scathing criticism. Despite this, many people are still willing to buy t...[Details]
On August 25th, TSMC, the world's leading contract chip manufacturer, attracted significant attention for its decision to build a chip manufacturing facility in Arizona. TSMC primarily manufactures...[Details]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
introduction
Sonar imaging is of great significance in marine resource development and defense. Its long range, intuitive display of the observed area, and target identification make it widely...[Details]
One of the most core components of electric vehicles is the motor. The power supply provides electrical energy to the motor, which converts this electrical energy into mechanical energy, which in t...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
Coal mines typically contain gas and coal dust. When gas and coal dust reach a certain concentration, they can cause explosions. Electrical equipment generates arcs during normal operation or durin...[Details]
During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
Bosch has released a new SoC series to support L2+ advanced driver assistance functions. The chip integrates high resolution and long-range detection capabilities, and has built-in support for neur...[Details]
China, August 21, 2025 – STMicroelectronics (NYSE: STM), a world-leading semiconductor company serving a wide range of electronics applications, has published its IFRS 2025 semi-annual financial re...[Details]
A tubular motor is an electric motor that is typically used to control the movement of machines and equipment. Tubular motors are generally divided into two categories: linear tubular motors and ro...[Details]
A scale, a large, ground-mounted scale, is typically used to measure the tonnage of truck cargo. It's the primary weighing device used in factories, mines, and businesses for bulk cargo measurement...[Details]
Puttshack's Trackaball uses the Nordic nRF54L15 system-on-chip (SoC) to monitor sensors and enable Bluetooth low energy connectivity, while the nPM2100 power management integrated circuit (PMIC) ...[Details]
introduction
The rapid adoption of computers has led to a growing number of tasks being performed on them. People from all walks of life, especially programmers and writers, are spending incre...[Details]
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
